/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.inspur.edp.cef.generator.coreGenerator.base.serializer.changeser.entity.serializer;

import com.inspur.edp.caf.generator.baseInfo.ParameterInfo;
import com.inspur.edp.caf.generator.baseInfo.TypeInfo;
import com.inspur.edp.caf.generator.method.ClassMethodGenerator;
import com.inspur.edp.cef.generator.coreGenerator.base.serializer.dataser.serializer.EntityDataSerGenContext;
import com.inspur.edp.cef.spi.jsonser.abstractcefchange.AbstractCefDataSerializer;
import org.eclipse.jdt.core.dom.*;

import java.util.ArrayList;

public class GetDataConvertorGenerator extends ClassMethodGenerator {
	private final EntityDataSerGenContext dataSerContext;
	private final Boolean isRoot;
	private final String nodeCode;

	public GetDataConvertorGenerator(EntityDataSerGenContext dataSerContext, Boolean isRoot, String nodeCode) {
		this.dataSerContext = dataSerContext;
		this.isRoot = isRoot;
		this.nodeCode = nodeCode;
	}

	private static final String Name = "getCefDataConvertor";

	@Override
	protected ArrayList<Modifier.ModifierKeyword> getAccessModifiers() {
		ArrayList<Modifier.ModifierKeyword> list = new ArrayList<>();
		list.add(Modifier.ModifierKeyword.PROTECTED_KEYWORD);
		return list;
	}

	@Override
	protected boolean getIsOverride() {
		return true;
	}

	@Override
	protected ArrayList<ParameterInfo> getParameterCollection() {
		return new ArrayList<>();
	}


	@Override
	protected String getMethodName() {
		return Name;
	}

	@Override
	protected TypeInfo getReturnType() {
		return new TypeInfo(AbstractCefDataSerializer.class.getTypeName());
	}

	@Override
	protected Block buildMethodBody() {
//		EntityDataSerGenContext dataSerContext = (EntityDataSerGenContext)ndcSerGenContext.getEDSerGenContext().getMgrContext().getDataSerContext();
		String dataConvertorType = null;
		if (dataSerContext != null) {
			if (isRoot)
				dataConvertorType = dataSerContext.getMainObjectType().getClassName();
			else
				dataConvertorType = dataSerContext.getChildTypes().get(nodeCode).getClassName();
		}
		if (dataConvertorType == null || dataConvertorType.isEmpty())
			return getNullReturnBlock();
		return getNotNulLReturnBlock(dataConvertorType);
	}

	private Block getNotNulLReturnBlock(String dataConvertorType) {
		Block block = ast.newBlock();
		ReturnStatement returnStatement = ast.newReturnStatement();
		ClassInstanceCreation classInstanceCreation = ast.newClassInstanceCreation();
		classInstanceCreation.setType(ast.newSimpleType(ast.newName(dataConvertorType)));
		returnStatement.setExpression(classInstanceCreation);
		block.statements().add(returnStatement);
		return block;
	}

	private Block getNullReturnBlock() {
		Block block = ast.newBlock();
		ReturnStatement returnStatement = ast.newReturnStatement();
		returnStatement.setExpression(ast.newNullLiteral());
		block.statements().add(returnStatement);
		return block;
	}
}
